1158453216 has 36 divisors (see below), whose sum is σ = 3294352152. Its totient is φ = 386150976.

The previous prime is 1158453209. The next prime is 1158453221. The reversal of 1158453216 is 6123548511.

1158453216 is a `hidden beast` number, since 1 + 1 + 584 + 53 + 21 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2010916 + ... + 2011491.

It is an arithmetic number, because the mean of its divisors is an integer number (91509782).

Almost surely, 2^1158453216 is an apocalyptic number.

1158453216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1158453216 is an abundant number, since it is smaller than the sum of its proper divisors (2135898936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158453216 is a wasteful number, since it uses less digits than its factorization.

1158453216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022423 (or 4022412 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1158453216 is about 34036.0575860366. The cubic root of 1158453216 is about 1050.2503457489.

The spelling of 1158453216 in words is "one billion, one hundred fifty-eight million, four hundred fifty-three thousand, two hundred sixteen".